Thomas Carlson (eds.), "Ḥulwān" in The Beth Qaṭraye Gazetteer last modified January 10, 2020, https://bqgazetteer.bethmardutho.org/place/220
    
        
            
                
                    Ḥulwān
                    حلوان
                    A settlement in Iran.
                    
                        34.465 45.855
                    
                    
                        Attestation of name حلوان
                            in the Kitāb al-buldān of
                                Aḥmad ibn Abī Yaʿqūb al-Yaʿqūbī.
                        
                    
                    
                        
                        
                    
                    https://bqgazetteer.bethmardutho.org/place/220
                    http://syriaca.org/place/220
                    http://pleiades.stoa.org/places/903043
                    http://en.wikipedia.org/wiki/Hulwan,_Iran
                    http://dbpedia.org/resource/Hulwan,_Iran
                    
                        The Gorgias Encyclopedic Dictionary of the
                            Syriac Heritage
                        
                        57
                        Map II D2
                    
                    
                        Kitāb al-buldān
                        Aḥmad ibn Abī Yaʿqūb al-Yaʿqūbī
                        
                        270